Year	$ 2017 PPP (%)
1998	5.67
1999	7.16
2000	7.69
2001	4.96
2002	4.75
2003	4.41
2004	3.78
2005	2.8
2006	2.63
2007	1.89
2008	0.94
2009	0.73
2010	1.44
2011	1.02
2012	0.99
2013	1.16
2016	0.81